Apparatus for making pails from pulp.



No. 698,948. Patented Apr. 29, I902.

A. n. HEYL. 1 APPARATUS FOR MAKING PAILS FROM PULP.

(Application filed Tune 21, 1901.)

2 Sheets- -Sheet 1.

(N0 Model.)

m: roams wzr zas co Pnorouma, WASHINGTON. D c.

UNITED STATES PATENT OFFICE.

ALBERTv DQN HEYL, OF SA-GINAXV, MICHIGAN.

APPARATUS FOR MAKING PAILS FROM PULP.

SPECIFICATION forming part of Letters atent No. 698,948, dated April 29,1902.

Application filed June 21, 1901.

To aZZ whom it may concern: I

Be it known that I, ALBERT DON HEYL, a citizen of the United States,residing inthe' city and county of Saginaw, State of Michigan, haveinvented a new and useful Improvement in Apparatus for Making Pailsfrom'Fibrous Pulp, of which the'following is a specification.- lWIyinvention consists of novel improve; ments in anapparatus for makingpails and similar articles'from fibrous pulp, whereby the pails,vessels, utensils, and; other articles are given a surface finish whilestillin'the machine which requires no further trimming, sawing,-orsanding, the pressed product be: ing ready for dyeing, coating, dipping,or impregnating with whatevenmaterials are necessary for waterproofing.

To the above ends my invention consists of a novel construction ofmovable members which are adapted to shape the pulp in the desiredcontour, provision being made for draining any surplus water from thepulp and for automaticallyimparting the desired movements to the variouselements of the machine at the proper intervals.

It further consists of novel details of construction, all as will behereinafter fully set forth, and particularly pointed out in the claims.r Figure 1 represents a vertical sectional view of an apparatus formaking pails,'vessels, and other utensils embodying my invention,show-,' ing the positionthe parts assume prior -to the first step ofmanufacture. Fig. 2 represents a vertical sectional view similar to Fig.1, but showing the parts in the position-they assume during theformation of the pail, ves-' sel, or other utensil. Fig. 3 represents,on an enlarged scale, a perspective view of one of the'closing heads indetached position. Fig. 4, represents, on an enlarged scale, a sectionalview, partly in elevation, showing the positions the members of the moldand the closing heads assume during the formation of the pail, saidfigure showing also the means for imparting a rotary motion to one ofsaid members. Fig. 5 represents, on an enlarged scale, a sectional viewof slides mounted at the base of the sleeve, to be hereinafter referredto. Fig. 6 represents a plan view, partly in section, of the upperportion of the apparatus.

Serial No. 65,446. (No model.)

Fig. 7 represents a plan view of a portion of Fig. 5.

Similar letters of reference indicate corresponding parts in thefigures.

Referring to the drawings, A designates a piston or plunger which isinclosed within the cylinder B, the latter being provided with an inlet0, which leads from a source of hydraulic power, whereby said piston maybe raised. On the sides of the piston are the racks D,with which meshthe segmental gears E, which by means of the links F are connected withthe sleeve G, the latter encircling the pipe H, which rises from thebase of the cylinder or casing B."

'. J designates a plunger which is fitted within the pipe H and isconnected at the bottom with the branch J.

Mounted on the upperend of the sleeve G are the closing heads K, thesame having legs L, which are adapted to be engaged by the exteriorshell former or member M of the mold.

Connected with the top of the plunger J is the plate P, adapted to form,in connection with the heads K, the bottom of the pail or other shapedarticle.

Q designates the inner member or former of the mold, the same beingconnected with the sleeve R, within which is the feed-pipe S, whichleads from a source of supply of pulp or other material of which thepail orshaped articles are made.

T designates avalve which is connected by the toggle U-with the lever V,the latter having a bearing in the upper portion of the sleeve B, saidvalve T having its seat W in the opening at the base of the inner memberor former Q of the mold. The upper portion of the cylinder or casing Bis cut away front and back, leaving two strips from the top of easing Bto plate A. Fig. 6 is a plan view of it above the line 8. It is herethat the valve- Q may pass out from the same into the outer member M andthen cut off.

X designates slides mounted at the base of the sleeve R and fitted-inguides Y at the top of the member Q for closing the top of thespacing-mold existing between the members Q and M.

Rising from the member A is the ear Z, having an inclined slot Z,adapted to receive the stud Z on the inner side of the casing 13,whereby at a proper time when the member rises the slot Z engages withthe stud Z and thus imparts rotary motion to the member M for purposesto be hereinafter explained.

The operation is as follows: In Fig. 1 I have shown the press open andthe valve-plug Traised and the spacing-mold between the members Q and Mfilled with pulp. The valveplug T is next seated or moved intotheposition seen in Fig. 2, and the outer mold member M is raised byhydraulic power into the position seen in Fig. 2, it being apparent thatit is conical-shaped and reduces the pulp to a permanent form and at thesame time pushes readily inward the heads K and the slides X. The plateP and the heads K also raise and reduce the pulp at the same time. Thisraise to the plateP and heads K is retarded by the rack and segmentalgear to conform to the movement of the outer member M and reduce thepulp evenly all around. The outer member M of the mold has openingstherethrough and is lined with slit metal or other suitable material, aswill be understood from the enlarged view seen in Fig. 4:. As the pulpis reduced the water squeezed out is drained from the mold member bymeans of the slits and openings in the member M. The rotary motion ofthe member M, as above explained, is utilized to thoroughly drain andsmooth 0% the pulp. The plate P and the heads K are also drilled orprovided with openings; but in the present instance are covered withperforated metal to retain the pulp. The varying distance between theheads is closed by the perforated metal extending to the next contiguoushead,-on which it slides, said head and plate also serving to drain thewater from the pulp, as is evident. The slides X (shown in detail inFigs 5 and 7) are arranged with metal extending across to the next slidein the same manner as described with respect to the slides K, theseextensions of thin metal closing all voids or open spaces and retainingthe pulp when under pressure. The inner member Q is a plane surfacecovered with slit metal, which when the pressed pulp is removed with arotary motion by hand prevents suction and smooths out the inside of thepulp form or pail. The water drained from the pulp collects on the plateG and passes out of the apparatus through the pipe B It will beunderstood from the foregoing that Fig. 2 shows the pulp reduced, and toeject the pulp,the following steps are necessary: The bolts 0 are drawnback, whereby the inner member Q can be readily raised by slidingupwardly the sleeve or casing R, to which it is attached, this raisingof the casing B being effected by the hydraulic pressure applied to theplunger J through the medium of the pipe J. If we assume the plunger Jto be rising, nothing is holding down the member Q, since the bolts 0are drawn, so that the plate 1?, the pressed pulp, and the member Q andtheir adjuncts all move upwardly until they reach the foregoing that thepressed pulp having been removed the machine is ready to be reset tomake another pail or utensil.

It will be apparent that when the bolts 0 are shot back nothing preventsthe inner mold member Q from dropping,which it does, the last few inchesof the descent being cushioned by the cushioning chamber or device E atthe upper portion of the machine. As soon as the inner member Q settlesdown to a certain position within the outer member M the same bolts 0are snapped into the desired position in the casing R, whereby theapparatus is locked and the operation of forming another vessel orutensil is repeated.

Having thus described my invention,what I claim as new, and desire tosecure by Letters Patent, is

1. In an apparatus for manufacturing pails and other Vessels from pulp,the combination of an inner and outer former, and means for imparting arotary movement to one of said formers.

2. In an apparatus for pressing pails and other vessels from pulp, thecombination of inner and outer formers, the outer former be ing providedwith a slit-metal lining or cov ering, and means for imparting a rotarymovement to said outer former.

3. In an apparatus for pressing pails and other vessels from pulp, thecombination of inner and outer mold members or formers, said outermember being provided with a slitmetal lining or covering.

4. In an apparatus for pressing pails and other vessels from pulp, aninside former or member provided with a slit-metal covering or lining,an outside member and means for actuating said members.

5. The combination of an inner and an outer mold member or former, meansfor imparting a rotary movement to one of said formers, means forpermitting the introduction of pulp into the space between said formers,a valve for controlling the flow of pulp to said space,

and mechanism for operating said formers.

6. The combination of a casing, a piston therein, an outer formersupported by said piston, an inner former of lesser diameter, a casingupon which said inner former is supported, a cushioning device forregulating the descent of said inner former and means for raising saidinner former and the pressed pulp, whereby the latter can bereadily-removed.

7. The combination of an outer casing,a pis-- ton therein, racks on theinside of said piston, toothed segments adapted to coact with saidracks, an inner and an outer former and devices operated by saidsegments and racks for completing the formation of the pail.

8. In an apparatus for making pails, an inner mold, means for lockingthe latter in its lower position,'an outer mold, means for raising thelatter, a plurality of pivotal heads, a plate adapted to coact with saidheads, a series of slides located above the inner or uppermold, andmeans for raising thelatter prior to disengaging the pulp therefrom.

9. In an apparatus-for making pails, an inner mold adapted to receivepulp, a valved opening therein, a lower or outer mold, a pistonsupporting the latter, a casing supporting said inner mold, a cushioningdevice for the upper part of said casing, and means for locking saidcasing in its upper and lower positions.

10. In an apparatus for making pails, a cylinder, a piston therein,means for raising said piston, an outer mold carried by said piston, aplate located transversely of said piston for catching water drainedfrom the pulp, a stationary pipe extending longitudinally of saidcylinder, segments on said pipe, racks carried by said piston andmeshing with said segments, a plunger in said pipe, a plate carried bysaid plunger, a series of pivotal heads surrounding said plate, meansfor moving said heads inwardly during compression of the pulp, an innermold, a casing supporting the latter,- means for raising said casing,and means for locking the latter in its upper and lower positions.

ALBERT DON H'EYL.

Witnesses:

WILLIAM F. PAINE, NATHAN S. Woon.

